![]() incomplete ring often opened toward the cortex favors demyelination.Many features of the lesion, as well as clinical presentation and patient demographics, need to be taken together to help narrow the differential. No single feature is pathognomonic, although a cystic lesion that markedly restricts centrally (the fluid component) on DWI should be considered an abscess until proven otherwise. necrotizing leukoencephalopathy after methotrexate 4,5Ī helpful mnemonic is MAGIC DR Radiographic features.lymphoma - in an immunocompromised patient.tumefactive demyelinating lesion (incomplete ring).subacute infarct/ hemorrhage/ contusion.The differential for peripheral or ring enhancing cerebral lesions includes:
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